Arc lamp



4 Sheeis-She'et 2.

. GSTN.

ARG LAMP, No, 385,?05- atented uy l0, i888.

mwa

Suva/vbo@ @JO bbl/mwa@ (No Mode.) Q 4 Sheets-Sheet 3.

. E. GASTQN.

ARG LAMP.

No. 385,705, nafcented July 10, 1888.

Tm', ,7 q l (No Model.) 4 Sheets-Sheet 4.

J. E. GASTON.

ARG LAMP. No. 385,705. Patented July lo, was.

Y ,/fl, w

ings ns Almnp is nso@ for Unirse STATES YPlrrnNT OFFICE.

AMP.

SPECFCATIGN forming pari'. Of Letters 'Patent ITO. 385,705.y datedJul-y' 10, 18853.

A nplication filed September 14, 18:7. Serial No. 249,619.

To all who/2z zz may concern,.-

Be it known than] I, JAMES GASTON, a citizen of the United States,residing at Fort "North, in the eounty oi' Tarrant and State of Texas,have invented ertein new7 and useful improveinenls in Are Lamps forLocomotive HeadfLighrs, of which the followingis such n l'nll, clean',undernet description ns will enable any one skilled in the nrt to whichit apperieins to nntlze and use the sinne. reference being had to theaccompanying drawings, forminfo),r part of Ithis speeiiention.

My invention relates more particularly to positive-feeding are lamps,the same being accomplished lay doek-train or other suitable motor.

The oojoet of my inveniiou is to produce an are lmnp that will heuninlluenoed by the jor of the loeonioiive. 't rhen an ordinary arelocomotive need-lights, this jar is suf-cient to so interfere with itsWo'rki to pre-einde are lamps from being used for suoli purposes. l

Are linups been heretofore designed for loc-,emoties inland-lights, andaccomplish the above result with more or less uncertainty. My lomppossesses features which, I elnini, will seenre the resnis desired in nsuperior nnnr ner. l

The invention consists oi", briefly, two enrlioirenrriers. preferablynrrnnged horizontally, the i'eed oi' both being. eoiitrolled by a shafthearing two snnrwheels, the one of larger di- :inieter then the other,so as to feed the positive'enrhon more tlnin the negative. The sindsli-.tit is rotated hy :reloek-trnin to leed the lmn-e-.irriers end theenrhons, hut is modified in its action to positively hoop the enrbons nton nnynrying distnnee hy :in erin connected with a rorlier, whieh letteris controlled in iis :nation hy -iin and derived Circuit magnets,1,n'ei`rrnl ly arranged horizontally, the relative ernennt ol'eurrentrpzrssing through seid ningnei's to Qontrol the apparatuslili-,ing dependent nnen the length oi' the nro, ns in ordinary arelamps.

nvenion consists, also, in eerl'nin fearuetion :rnd :n'rnngeinent anddehe iierei nnlier set forth, out in the claims sp .sn-: pnrtieulsrlypointed A@ended hereto.

(No model.)

Figure lis n plan view of an :neleinpadepl ed for locomotive head-lightsembodying niy invention. Fig. 2 is n front elevation thereof; Fig. 3, anend elevation ot' the sinne at the lei't hand of Figs. l. and 2; Fig. 4,:in endeievntion at the right hand, of the some; Fig. 5, 2in-elevetionloi' the sinne with the front half of the lmnp removed; Fig. (i, n sideelevation of the slieft controlling the feed of' the cai-lions; Fig. 7,aside elevation of a portion oi the latter, pnrtl'y sectioned and on alarger seule; Figs. 8 and 9, respeotively.an elevation and plan of n.eut-out; Fig.10,n cross section of my carbonholder.

The saine letters of reference indicate the same parte throughout thevarious figures of the drawings.

A is the base in the drawings as resting upon pieces, B B.

C is a freine carried by said base and snpports the shalt D. whichcontrols the feed of the earhons. The frame C supper a frame, E, .whichcarries a clock-trein for rotating said shaft.' At the forward part thisframe C supports@ freine, F', which is care. fully insulated from C, nsshown in Figs. Send Lt. Above the traine li" is arranged another frame,F, which is ornniy be in eleetrienleoin iuuniention with the frznne Cand other ports of the app: "eins,

The l'rznne il nud the ports e-.irried hy it are electrically separatedfrom the nuiin portion ofthe apparatus and the frame F, the former ol'uhieh rnrries the million-feeding mel; G' and the laitier thecarbon-feeding ruoli Gholh ol' which nre coupled to nud slide with therods Il. and Il, rrspeetirely.v From the enrhoir feeding roel; (1"depends zrlninger, l. whieliby hellend-socket joint suppe holder K thatelnnips the enrbon L. From the rorlion-eeding rnok G dependscorresponding parts indicated hy the some letter, having the index 2foi-supporting the carbon La. "lhese enrhons nre kept in nligunoent hytwo posts, Mand ill", respectively,provided at their upper ends withanti-friction rollers, so esto eli'ord little resistance to the saine.Both 'f these posts are insulated from thehaso-pl-.ne A. From thehangers l l2 depend pivoted pieoesull and N", respectively, which carryof the appnratiis,wliiel1 is shown two wooden ts at its beek rs theenrbonv y rollers adapted to travel upon wires O' and O",

attached to the posts M and Mand supported at their outer Aends'hy anysuitable means be- .youd the-apparatus.Y These rollers-and wiresas'vpossible throughout.

The shaftD passes through the apparatus and carries a wheel, a', thatengages with the carbon carrier'racl-t G' and is suitably insu- .latedfrom said shaft. This wheel has prei erably, say, twenty-four teeth.Beyond this "..wheel aand carried by the saine shaft is carrier rack Gi.

.5 another wheel, a2, of less "diameter-say fonr- .-zteen teeth-whichengages with the carbon- When the shalt carrying.` vthese wheelsisrotated `by the clock-train, it will cause both carbons to feed.

one, L', will be fed through a greater distance because of the lar-gerdiameter of the gearwheel a which impels it.

Upon the shaftD between the frame C is a toothed wheel, b, held inplace' by a collane, and a collar, d, provided. with a fiat disk, e,carryinga pawl. The tooih'edwheel b is loosely mounted ou the shaft Dand has a toothed wheehf, integral therewith engaged by'the,

aforesaid pawl, so that the wheel-b (see Figl?) may turn freely inonedirection, but will i'otate the shaft when turned in the other direclThe tooth is free to slide in the end o f said crossarm, and is providedwith a pin working in a slot therein to keep it from rotating and tolimit its. play. It has a spring for holding it up in its normalposition. (See Fig. 5.) To the arm l? =isisecured a rocker, Q, which is.supported between the frame C by screws forming a pivotal connectiontherefor. (See Figs. 3 and et.) Depending from one end of saidrocker-arm Q' is a yoke, R, supporting the cores of main magnets S,which are wound with coarse wire and 'are in series with the main lineand carbons. Fromthe other end of the yrc'icker-arru Q extends' avibrating piece; T, pivoted to said rocker-arm at h. This vibratingpiece is attached at its inner end to a small rod, t, encircled byaspiral spriugpaud having va base-plate at one end, through which the rodz' is adapted to slide in and dnt, and'ha'ving at the other end a unt,

4 between'whichand the base-plate the/spiral spring lies. By turning thenut in one or the other direction a greater or less tension is put uponthe spring. By this construction it will he observed that the vibratingpiece T is capable of 'a downward movement independently of therockerarm Q, for the rod -z' and the spring surrounding it permit thisaction, the

baseplate of thel rod i being perforated and resting against theparallel edges ofthe rockerarm Q see Fig. 1) accommodating thisfunction; From the vibrating piece T pivotally depends anotheryoke,U,ea.rrying the cotes, of electro-magnets V, wound with tinegrimaud The positivein a derived circuit around the lamp. ,The cross-armP at its lower en'd is provided with limiting stops k k, mounted in abracket secured to the frame C. It is also provided with atension-spring, l, and adjusting-screw,m,

supported by an angle-piece secured to the v plate A..

Vf is the positive binding-post,which is insulated from the-base-plateA, and is connected with the derived-circuit magnets U andthe main magnets S. 7 n is a binding-screw for attaching the otherextremity of the wire from the magnet S to the lower frame, F', carryingthe carbon-feeding rack'iG, in electrical communication with the carbonL', all of which, as before described,

is electrically separated from the upper frame,

F, carrying-the'second carbon-carrier rack G2; Normally the carbons aretogether.

The clock-train being wound up', the current is turned on and passesfrom the binding-posty W,in the direction of the arrows, throughmagvnets S to binding-screw nupon the llower carf` bon-carryingrack-frame, and by way of this to the positive carbon L', to the secondcarbon, t,

L", oa the carbon-carrying rack G2, to its frame F2, and from thence tothe frame C and baseplate A to the negative bindingpost X, with whichthe said -frarne Fz is tin' electrical connection. The carbons beingtogether will cause an excess of current to pass throughthe main magnetsS, (the derived-circuit magnets being depleted of current,) and thiswill energize the magnets S so strongly that they will draw down therocker-arm Q, and iinpel the tool h g, carried bythe cross-arm P,against the toothed Wheel b, (see Fig. 5,) and by means of thcpawlengaging ratchet j', forming a part of said toothed wheel, willproduce a rotation of the shaft D, which will effect reciprocation ofthecarbon-carrier rack and a separation of the carbons. The are now willbegin to burn, and the tooth g will remain between the meshes of thewheel b until the are becomes abnormal, when the derived-circuit magnetsV will become energized to such adegrec as to draw down the rocker Q andfree the wheelv b. The said wheelbeing i'ree to turn in the oppositedirection, the shaft D is .not disturbed by the backward movement of'the tooth y, which by means of -this backward movement frees itselffrom thesaid wheel b; The tooth g being mounted on aspring, is alsoaii'orded additional facility for escaping the wheel b upon backwardmovement. lThe wheel b having'nowbeen liberated from the restrain ingaction of the tooth g, which is drawn away from it by thederived-circuit magnets V, as before described, the clock-train nowactuatcs the shaft D and slowly feeds the carbons to-u gether. Themagnets S becoming now more depressed thereby until it takes well intothe saine, and is then forced upward by the spring upon which it restsbetween the teeth of said Wheel. When the oarbons approach neartogether, the tooth gis impelled by the magnets S against the wheel l),and thus effects a sepairzition of the oarbons to the proper degree. itwill bo seen, therefore, that the iootli g :nodiies the feeding notionof the clock-train by holding it when the onrbons are a proper dis reneeapart, by actuating the sliaft i) to sep-.irate the earbons when toonear together, and when the tooth is withdrawn permitting lelieclock-train to feed ille seine. attached to the end of the eross erin'l), connected with tno cross-erin bestens or post pones iiie notion ofthe 'iootli g corrieri upon it :is vits tension is increased ordiminished, yinns regulating the length of 'the nro. between theoni'boiis. The Stops L". it serve to liniit the play of said oi'ossnrin.

Y is n pin prejeeting downwardly from tlie yoke. U :nid .idnpted tostriireagainsta lately/5, pivoted to o, posi', o, on ilio liaiso- :indiioidingnn zirin, p, away ,Vroni binding-post W. j) is ntinolied to aSpindle, g, provided willi a tlininlrserew enoireiod oy :i spiralsprinff, r, (see Fig. 8,) ilie wlioleof which is surrounded by :irecessed eylinrier, s, wliieli is e. little shorter ilnin the spindle q,so es to allow n slight vertical play oi'ilie sinne and the erin p,

so finit when the spindle is pulled downward liy tire tlinnib-nnt thenrin p will lree ilielzitcli Z, and lie spring r place the suine inContact with ne binding-post "Y, Completing one eircnit from tlio Sonieto tlie binding;l post X by way of tile onse-pluie A, as ilie :irin i;lain eleetrienl roniniiiniezition willi said linse. Should the millionsfail to feed, llie magnets V wonld (li-nw down tlie yoke U and drnw downiiie vibrating piece compressing tlio spring surrounding Llie pin whichholds lo l-lie er-nrni 4 3, lig. 5,) lie cross arm P being; An thisinstance zigziiirt iilie li'nii ing-sterile, ns shown in ille drawings."Lillie pin Y will iiien strike. the nivli Si und canso it io liberatethe zii-ni l) and oni; alle lmnp ont of eirenit. 'iliis could :also oe:ioooinpllslieil by lianil, as before described, so that ille lamp canlier ne ninnnnlly or :nilolinitimilly cui, ont or circuit. ln nnotliornppliefiiion, Serial No. 249,23 filed September 31H18?, l have desorioe-l :ind elniineri combined liand-sii'itoii and automatic rutont. ltherefore lay no claim rollio sninein this npplieniion, except in(combination willi the peenlr nieolionisin oi this ense, :as will ooseen by ro fn'ee to the olziiins milking zi part of 'nissif-ilieiiii-on.

Between tile esenpenien-e'.. 1 :ind the {flock-irri n wiiio'n controlstile roiA lion of tlie simil; l) inzit ino verrier rzioks l' und if, linier) and rnieiiet -u n, res-ieotivelggvso i nonfozirrerinbe'slidoeelisnrd w i arming line senpenient of said oloe-tr' ws theeerbon-oerriers to been l l i l i l l l 'Q reonirollofl l l have shownin Uno .lrnwings, at the iorward end of slizil't D, n retclietwlieel, w,wliiili is adapted to ne engaged by a pawi, that can 7: "ne swung intoposition when needed, so as to hold the carbonite. iers in position whenslid apart io replenish the saine with fresh csirbons. W'itiiont thisprovision, or a provision oi' this character, when the oai-lions weresep- 75 drei-eil, the oloeiitrnin would rnn there together again.Tiiepawl x is only oronglit into requisition 'when it is desired tolioid the ap iii-utils from operation. A milled head, y, of insulatingmaterial, is provided for the shaft SQ i), :ind the carbon-carriers nmylie separated turning this milled head. The shaft D snonlii ne carefullyinsulated throughout and removed .roni'eleotrieal Contact with thefrau-ne if, marrying tlie carbon-rook G', as will be seen :5 3 )yreferenoe lo Fig. 6. The pewLiind-raiohet arrangement just described andthe milled lien@ for turning lie snalt l) in a reverse di reetion to'die rote 'i eiected by the eloe K;- train ooiilfl loe placed upon 'theShaft D at the ry ren-r ol' ilie apparat-ns, if desired, and wouldperlinps be :i preferable arrangement. lt will be observed tinit whenthe earbonearrier racks are slid book for the purpose of furnishingfresl. on'rloon to the lomp "olie @look-train 95 rewonnd by thisoperation, and the tension tiirown upon ilie spring of the train bysliding the carbon-racks backward is snllicient to feed them forward.Thelzinipisilierefore oapz'inlo of rev/hiding itself lijy' tiie inerenot of putting; iov enrlions in it. At any rnie, one Winding of theeloolrtriin is sniiioienito operate the lmnp for n long time, by reasonoftlio rewiiiding ei'- l'eot spoken oi above.

ln Figs. l. 2, and l0 is shown my carbon` 105 holder l.. 'lliis consistsoi" n smioiiziry part` l, and zi. i'eniovniile part, 2, eznflieylinflricnl :ind seniieircnlnr mid adapted to receive tin. cnil (.e llion. Aroundtliesnineis plm-ed n ring, lield in pinoli thereon bycollars i enst on enel! peril. llio sind ring is provided willi ntlinnil screw, 4, so tlnit @no saine niniv be screwed down to lirnily1nold tlie reinoi'nlilo port in plzire und Yhind the nforesnid partstor, 3 So for :is l ann nwnre, this oziilion-liolilor l believe to benoi el. lts sirnplieily :ind eilinienuy nre its eliiof lezitnres. it con:ilse 'ne readily ninnipnlziiod so ns to liii f sri-t or ronioro l'lieriirnons.

it 1:fill in? fri'iileiiiv if: those skilled in ille ari, llin'u tni.signers S :ind V may lio arranged i'erliafzillj; over one nnotlier sindille eross-firni roioliy :is readily 4is in 'Lilie ar i 2 y'amontlier-win set ont. l do not wisli, Linn jure, to #online myself to illeinngnelsiieing horizon ly arranged. il'` will he noted tlmttiniyiln'nting pieife'llieing noted otlie rocker :ill allow the Cores oithe ningneis i n. nem-ly vert nl movi nient :and prevent friotion oi'the sinne ngninst the interior'sides of ine magnets, tnns notVinterfering with the serv sitiveners of tiie apparatus.

gro-'ive l'or the rii w rui nu Having' now fully set forth myinvention-and stated its mode of operation, I wish toV have itunderstood that I do not limit myself to the exact constructiondescribed, .as the same may be varied' in many ways by those skilled inthe art without departing from the spirit ofY to feed the 'carbons of anare lampby means.l

my invention; but

What I desire to claim, aud-.secure by Let-4 ters Patent of the UnitedStates,v is l 1. The combination,.substantially as hereinbefore setforth, of the carbon-carrier racks G and G", su pported in frames FandFsuitably insulated from each other, hangers If and I2, dependingtherefrom, supporting carbonholdcrs by ball-and-socket joints, thehorizontally-arranged carbons L and L", guidepulleys supporting the samenear the arc to keep said cai-bons in alignment, a track suitablysupported, and pulleys adapted for the same to support the carbons andcarbon carrier racks at their outer ends. .t .2. The combination, ashereinbefore set forth. of the carboncarrier racks G G2, vframes F andFi, carrying the same and suitably insulated from each other, hangers'l' and I2, carbons carried thereby horizontally arranged, guide andsupporting pulleys for the same ,near the are to keep the carbous inalignment,

guide and supporting pulleys connected to the hangers remote from theare and running on asuitably-supported wire or track, a shalt,

`D, with spur-wheels lthereon, adapted toengage and move saidcarbon-carriers, a clocktrain for positively actuating said shaft, andelectromagnets for modifying the rotation of said shaft to keep the arcpractically constant. 3. The combination, as hereinbefore set forth, ofa shaft adapted to effect the feeding of an are lamp through theinstrumentality of a suitable motor, main and derived circuit'magnets,and a rockerarm controlled thereby, with a cross-arm 4adapted to engagea toothed wheel on said shaft and modify the rotatipn ol' the same,so asto keep the arc practically constant.

4. The combination, with the wheel b, carriedby the shaft D, alsocarrying pawl and ratchet therefor, of the spring-actuated tooth g,substantially as described.

5. The combination of the shaft D, adapted to feed the carbons by rackand pinion through the instrumentality of a clock-train, loosely,-mounted wheel b thereon having ratchet integral-therewith, a pawlrigidly mounted upon said shaft engaging said ratchet, and a toothinterposed by the action of the main and de rived circuit magnetsbetween the teeth of said wheel to arrest the feed of the carboubr toadvance the same by lbeing iiiipelled against said wheel to separate thez.cial-bons, or to be freed from said wheel bythe differential action ofsaid magnets to allow the clock-train to feed, substantially asdescribed.

6. The combination of the shaft D, adapted to feed the carbon by meansof racks and pinionsthrough the instrumentality of the clocktraimthewheel' band ratchetf integral theresith, loosely mounted up'on 'saidshaft, with pawl carried by thesame engaging said-ratchet,

the main and derived circuits S V, and the `rocker-arm Q, connecting thetwo together,

with crossarm P, havingspring actuated tooth g, for the pur osedescribed.

7 The com ination of the shaft D, adapted of a rocker,- Q, and tooth gengaging a pinion y on said shaft, and the 'pivotedlvibrating piece T,mounted on said rockerl and coupling the yoke of either magnet thereto,whereby the cores of t-he magnet may move in a vertical line and.rubbing against the interior side of said magnet be prevented, for thepurpose set forth.

9. 'lhe combination,ashereinbeforeset forth, with the rocker Q, of thepivotcd vibrating piece T, held by a spring to the same,the crossarm Pandlimiting-stops, the piu Y, depend ing from the -yoke U, sustained bysaid vibratingpiece, and an automatic cnt-ontoperated, substantially asdescribed,by said piu.

1 0. A clock-train adapted toimpart motion to one or more carboncarriers by means of a shaft, 'as D, a pawl and ratchet between theescapement of the clock-train and said shalt, so that thecarbon-carriers may be retrograded without actuating the escapement, and

a second pawl and ratchet, for holding' said shaft in any desiredposition,operatcd at will.A

11. A clock-train adapted to impart a positive motion to one or morecarbon-carriers by means of a shaft, as D, to feed the carbons, apawland ratchet bet-Ween the escapement of the clock-train and saidshaft, so that the same may be freely retrogmded, electro-mag-l nets,and intermediate connections coptrolling the feed of said shaft by meansof a loosely-mounted wheel coupled to the same by pawl and ratchet,so asto permit the aforesaid retrogradc movement, substantially as4described.

.12. Aclock-train adapted to impart posi--A tive motion to one or morecarbou-carriersby means of a shaft, as D, to feed the carbons, a pawland ratchet between the eseapement of the clock-train and said shaft,electro-mag` nets controlling the action of said feed by means of atooth engaging a loosely.mounted wheel`conpled by -a second pawl andratchet to said shaft, whereby said shaft may be reti rograded toseparate the carbon-carriers and carbo ns, a milled head, y, foreffecting such retrograde movement of said shaft, and a third ,pand andratchet brought into operation at will for holding said shaft inopposition t0 the l l eloeletrain.

' 13. The combination, with the two czirboncarrier melts G and G2,hangers l. and 12 adjustable thereon, each carrying its own enrhon, andGarbonholderssupported by ball andsoek'e't joint in said hangers,between the same and the ozu-bons, substantially as described, wherebythe ein-bons may be adjusted in position and aligned, as set forth.

14. The combination of the emboli-carrier racks G 12,* the hangers andcarhonearriers supported from the same, holding the carbons in position,the shaft D, having pinions a and @engaging said carboncarrier moliseclock-v train adapted to i ytete said-shaftin one direction and feed thecarhons, atothed wheel, i, loosely mounted upon said shaft and coupledthereto by paw] and ratohet,roeker Q.pivoted to the frame of the lamp,with cross-arm P adapted to engage saidtoothed wheel, and main and`derived circuit magnets Sl and V,suhstantiall y as described.

15. The combination of the carbon carrier mks G' and Grimm-ying theearbons,snppo1t 25 ingspnlleys for thesaineat and remote from the are tokeep them in alignment,a shaft,D,hav in;T pinions a and a2 of differentdiameter er1- `freeing said carbon-carrier racks,a clock-train zrdipl edto rotate sind shaft to feed the carbons, 30j

main und derived circuit magnets controlling n rol-ker, Q, and cross-armP, adopted to Control the rotation of the shaft, limiting-stops andtension regulating devices for the latter meel miisni, :L spring-heldVibrating piece p'ivoted 35 to said roelier, and a vpin, substantiallyas Y; :md :i eut-out operated by the same.

In testimony whereof I have hereunto Set my hand :in d sezihthis 8th dayofSeptember,1887, in vthe presence of two subscribing witnesses.' 4o

'JAMES F. GASTON. [L s] Vitnesses:

I). F. MoUR'rAN A. W. CHANEY.

